SN74LS623NS

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LS623NS is an octal bus transceiver from the Texas Instruments SN74LS series, housed in a 20-pin SOIC package. It features bidirectional data transfer with tri-state outputs and TTL-compatible input/output levels. The device operates within a supply voltage range of 4.75 V to 5.25 V, supporting a maximum low-level output current of 40 mA and a high-level output current of -8 mA. It includes local bus-latch capability and hysteresis at bus inputs to improve noise margins, functioning as a non-inverting buffer/driver for digital logic applications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Bidirectional octal bus transceiver with tri-state outputs
• Local bus-latch capability for data storage
• Hysteresis at bus inputs to enhance noise immunity
• TTL-compatible input and output voltage levels

Buffers, Drivers, Receivers, Transceivers Applications

• High-density digital bus systems
• Memory interface circuits
• I/O port expansion
• Data buffering and driving

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'NS' corresponds to the 20-SOIC package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors, as legacy LS series parts may have varying environmental certifications. Ensure the supplier provides valid traceability for this discontinued or active component depending on current production status.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring robust noise margins due to input hysteresis. It is suitable for TTL logic families needing bidirectional control with latch functionality. Compare against standard SN74LS623 variants if surface-mount packaging is required instead of the PDIP option. Verify power supply stability within the 4.75 V to 5.25 V range to ensure proper operation.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments SN74LS family of logic integrated circuits. It serves as an octal bus transceiver, distinct from single-bit buffers or unidirectional drivers. The SN74LS623NS specifically denotes the surface-mount SOIC version, differing from the through-hole SN74LS623N. It is categorized under standard transceivers within the broader logic IC portfolio.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74LS623N is the equivalent through-hole DIP package variant. Check for SN74LS623NSA if lead-free specifications are mandatory. Verify pinout compatibility before substituting with other octal bus transceivers from different manufacturers.